Faint BFPs and bright red bleeding

[HollyFred]

No other explanation than a chemical is there?

Probably not, sorry OP 😕how many DPO are you?

13dpo - have had light tests since 10DPO but very light - true a few different brands.

Oh well on to the next cycle!

It’s gone both ways for me in the past. 13dpo is still quite early. Mine didn’t look significant until about 14/15 dpo. I also had what looked like a proper period with my last pregnancy.